Turn shoe cementing machine



w. l.. MacKENzlE TURN SHOE CEMENTING MACHINE April 16, 1940.

Filed Nov. l2, 1938 Patented Apr. 16, 19,40

TURN SHOE CEMENTING MACHINE Wilbur L. MacKenzie, Beverly, Mass., assignor to United Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application November 12, 1938, Serial No. 239,900 9 claims. (Cl. 12g-8o) This invention relates to machines for applying cement to work parts and is herein illustrated as embodied'in a machine for cementing the adjacent faces of a channel provided in the soleof '15 a turn shoe, which machine is of the type disclosed in United States Letters Patent 2,098,253, granted November 9, 1937,y on an application filed in my name. It is to be understood, however, that the invention is not limited to machines of 10 that particular character."

' In the manufacture of turn shoes, it is customary `to provide a channelin the sole,rthe channel being cut in from one face of the sole toward the edge thereof. The channel serves the purpose of l hiding one row ofthe stitches of the inseam uniting the marginal portion of the shoe upper with the sole.` The channelflap, having its xed end or edge nearer to the sole edge than its loose or free end, is raised before the sewingl operation and then, after the stitches have been laid into the channel, is turned back intofull engagement with the sole. l

To 4my knowledge, it has been the general custom heretofore, merely to turn the channel nap back into engagement with the channel after the inseaming operation, no means being employed to secure thechannel iiap permanently in its stitch-covering position'. As one of the reasons for that procedure 'may be mentioned the lack ofr suitable means for properly and adequately applying cement tothe channel of a turn shoe diiering, as explained, from most outsole channels in its position with respect tothe periphery of the sole. y 35 It is, therefore, an object of the invention to provide means for applying cement tov the` anguvided w'ith ka tapered nozzle anda cooperating oscillatory memben for holding the channel flapr in cement-receiving contact with one side of the nozzle.I The ldap-holding member is located` at 45 the side of the nozzle facing the` machina'since the channel flap yof aturn shoe presented to the machine islocated at that side of the nozzle.

v In accordance with another feature of the in- 0 vention, there is 'provided in the illustrated machine a driven feed -wheel ywhich engages the upper of the turn* shoe to' be cemented substantially along the outer row of stitches uniting the upper with the sole. This' feed wheel causes the .55 shoe to be moved past thenozzle'andis arranged tioned nap-holding member. The above and other features of the inventio will now be more particularly described with reference to lthe accompanying drawing and thereafter pointed out in the claims. f

In the drawing:

Fig. l is aside View of a preferred embodiment of the invention showing a machine with its various moving parts in their operative positions;

Fig. 2 is aside view-of the principal work-engaging instrumentalities of the machine illustrated in Fig.'l and viewed inthe opposite direction; and

Fig. 3'is` a View of certain parts of a nozzle with which the machine illustrated lin Fig. l lis provided. f

The invention is illustratedv as embodiedin a machine .of the type described in United States Letters' Patent 2,098,253 mentioned above and reference may be made to that patent for a description of the machine structure not 'ful-1y shown herein. The machine as illustrated herein isr especially adapted to apply cement tothe bottom portionjan'd inside face of a channel provided in av sole S (Fig. 2) lof'a turn shoe mounted on a last L. As is common, the'marginal portion ofthe shoe upper U is received in a shoulder por-- tion provided around the margin of the shank portion and lforepar't of the sole S and is held there by an inseam, the inner row of stitches of on the same side of the nozzle as the above-,men`

which is laid-int the said channel provided inthe sole S. y

For the purpose of applying cement to the 'channelof the `sole S,-the illustrated machine is .provided with cement-applying means, charin'iel-v flap-'engaging means,- and work-feeding meansr the construction and function of which will now be described. On a frame l0 (Fig. Il' is secured.l

a carrier vI2 supporting' a nozzle y for applying cement'to the channelof lthe sole S. The lower portion of the carrier l2 is provided with lspaced laterally-extendingv flanges support a T-shaped block lliy tted in the' space between the flanges. The block Nilis hollow and carries at its lower extremity a hollow nozzle :stem I8 which is `in communication with ,the hollow interior of the block G. The nozzle .stern i8" is downwardlyI inclined laterally yof the machine and its lower end is cutoff along a vertical plane. Secured to the lower end of the nozzle stem` I8` is a nozzle 20 comprising two plates 22, 24 shaped gether form the nozzle 201. v The inner face of theL plate 22 is provided witha groove 26 and when the nozzle 26 is mounted in its place in the machine, the upper end of the groove 26 is in communication with the hollow interior or conduit of the nozzle stem I8. The two plates 22, 24 are secured with their inner faces engaging each other to the lower end of the nozzle stem i8 by means of screws which simultaneously vserve to clamp the nozzle plates 22," 24 securely together. At the lower end of the groove 26, which in the clamped-together condition of the nozzle plates 22, 26 forms a passage for the cement through the nozzle 20, is provided a smaller groove 27 (Fig. 3) through which the cement is extruded out ofiy the tapered lower end'or tip of the nozzle. The side edges of the'tip portion of the plate 2 are cut back and the tip portion itself is reduced in thickness,. thereby providing lateral outlet passages 28 for the cement4 so that the cement is uniformly applied to the inner face of the nap portion as well as the bottom face of the channel provided inthe `sole S.

At its upper end thegblock I6 is in communication with a conduit29 provided at its lower end with a flangefirmly secured to the top face of the block i6. rlIhe conduit 29 through. which cement is pumped under pressure into the nozzle stem i8 in a manner described in the aforesaid United States Letters Patent is provided with -a shut-off valve 30 which is controlled by lmecljianism to be described later. The upper end of the conduit 29 is threaded in a T-tting 32 one end of which is closed by a slug for which a pressure gage may be substituted as shown in the Letters Patent mentioned above, and the other end of which is in communication with a exible tube 86 through which the cement is pumped under pressure.

To support the flap portion of the channel during the cement-applying operation, and particularly to hold the nap portion Awhich has a wavy and irregular shape against the cement-applying nozzle so that a uniform coat of cement may be applied, the machine is provided with special flapsupporting means. The lower end of the abovementioned carrier l2 is provided with a rearwardlyand downwardly-extending bracket 38 4carrying at its lower extremity a pivot pin 46 for va lever AlLZ., The lever 82 is provided with a forwardly-extending downwardly-curved arml 44 lhaving agroove 45 in its forward end extending longitudinally of the arm M in which is adjust-.

ably securedthe stemportion 46 of a flap-supcally shaped in cross-section and engages the marginal portion ofthe shoe upper U along the inseam. 'Ihe feed wheel 58 is positively driven by driving means. The feed wheel 56 yand its stem portion are secured to the upper end of an Y inclined shaft 52 rotatably mounted in a supporting member 58 and driven by means of angularly-disposed shafts 54 and56 mounted in suitable bearings in the Supporting-member 58.

Driving connection between the shafts 52 and 54 is established by vmeans of intermeshing gears 68 provided at the lower extremities of these shafts and driving connection between the shafts 96 rotatably mounted on a'xed pin v98.

`portion at 6 4 an upwardly-extending'arm 66 ful- `crumed on a xed pin 68 in thefframe '16.

rearward extremity of the support 58 isv pivotally secured at lll to the upwardly-extending arm of a `bell crank lever y'l2 rotatably mounted on a iixed pin 14. As will be seen, the arm 66 and the upwardly-extending arm of the bell crank "l2 are `substantially equal in length and constitute a parallel linkage for restricting the movement of the supporting member 58 in a substantially horizontal direction.v A spring l5 between the frame and the arm 66 draws the member 58 into the frame and away from the work when the machine is idle.

It will be noted that the tip of the nozzle and, more particularly, the top face of the nozzle tip against whichthe channel ap is held, is inclined toward the rightl in- Fig. 1 or inwardly of the machine, whereas the top of thevfeed wheel 58 is inclined in the opposite direction, namely toward the left in Fig. l or. outwardly of the machine.

The flap-engaging member 48 is arranged `topos-Y sole S against the nozzle, thereby to seat,if necessary, the nozzle in the sole channel.`

The above-mentioned shut-off valve 36 which controls the amount of cement applied to the work is operated by means of a horizontal rod 16, one extremity of the rod being connected by `means of a ball joint 'I8'to` the valve stem and the other extremityl thereof being connected by means cfa `ball joint 19 toda horizontal rod 8!) `provided at its rearward extremity with a laterally-extending arm 82. Then free endo-f the arm 82 is pivotally secured to theupper end of 1 a link 84 the lower end of which is secured. to one end of an arm 86 rotatably mounted on a xed pin V8l. Aspring 35 tends ytofswing the arm. 86 into itsinoperative elevated position and maintain the valve closed. The arm 86 may be operated by means of a treadle (not.l shown) and for that purpose it carries about'niidway between its ends a pin 89 engaging 'a slot provided in a They soL

Imoved. outwardly of the machine, tovpress the` plate extending downwardly from a blocky 88, i

substantially as shown in the- Letters Patent above referred to. Secured to the block 88`is the upper end of a treadle rod'92 ,surroundedby .a spring 96, the upper end of which abuts against a nut 85 on the rod 92. The lower end of the spring 94 is seated on the horizontal `arm of the bell crank 'I4 which surrounds the treadlefrod 92, the spring 94 serving to transmit `the movements of the rod 92 to the bell-crank-'IZJ Pivotally secured at 98 to the block 88 is aI two-armed lever The lever 96 upon depression ofthe `treadle is swung in a clockwise direction, asviewed injFig. 1, until its left-hand -arm engages ywithyav fixed stop |08,

`thereby determining the extent of downward movement of fthe treadlerod 92 andthe movel 42 and to the nap-engaging member 48 or, in the movement of thetreadle rodf- 92, into' 'shoeengaging position.' 'l l For -the purpose of 'imparting oscillatory mol tions to the flap-supporting member A48, the upper end of the lever`42 is pivotally connected to the 'f forward end of a horizontal bar |02 the rearward l end of which is connected, asin amachine `of I the above-mentioned United States Letters Patent, to a toggle |04, |06,a spring |03 sur-r rounding the'rod |02 tending to move the rod |02 toward the right of Fig. 1 for vthepurpose of L lmovements are imparted by a cam means (not shown) identical to that for impartingoscillatory motions to the corresponding member of the machine disclosed in the said United States Letters Patent.

For the'purpose of breaking or straightening the toggle |04, |06 so thateither oscillatory mo- 'l .tions of the arm |08 are imparted to the lever broken position of the toggle, .the llever |08 is swung idly, there is provided a link` H6, in the slotted upper en d of which is received the fulcrum stud H4 connecting the two toggle members |04, |06. The lower end of the link ||8 is pivotally secured at 90 to the block 88 controlled by the treadle rod 92.

The toggle member |04 is supported by an arm |'|3,'the lower end of which is pivotally secured to the said toggle member andthe upper end lof which swings cna fixed fulcrum: stud.

In 'the operationof the machine `the work is presented by the operator to the machine in such 'a position, that the outer row of stitches of the Iinseam is engaged by the feed wheel 50, and that v the tip portion of the nozzle 20 extends into the channel of the sole as illustrated in Fig. 2, and that the nap-supporting member 48 is located 'adjacent to vthe ap portion of the channel.

Upon depression of the treadle and downward valve 30 and permit lcement to be extruded through the nozzle 2liy into the channel of the sole S of the turn` shoe. Moreover, through `the downward movement of the treadle rod S2 and vthe block 08 the link H5 is moved downwardly with the resultA that the toggle |04, |06 is straightened, the nap-supporting member 48 is moved into operative position and the oscillatoryy motions of the continuously operated lever |08 are transmitted, through ,the straightened toggle |04,.|08 and the rod |02, to the lever 42 and the ldap-supporting member 48. By reason of the wibratory movement of the flap-supporting member 48, the nap, even if it should have an extremely wavy and irregular shape, is intermittently pressed against the cement-applying nozzlevso that a uniform coat vof cement may be applied to v so asto press theshoe against the nozzle.

theiinnerface of thechannel flap as well 'asthe channel bottom. y

Upon release ofthe treadle, the treadle rod 92 is movedl upwardly bythe spring 85. `The valve 30 isv immediately closed by the upward movelment of the arm under the influence ofv its spring 85. The toggle |04, |00 is broken by the Aupward movement of the link ||6 so that the lever |08 no longer imparts oscillatory" motions to the lever 42, the vrflap supporting lmember 48 being moved rearwardly into inoperative position by means of the spring |03 surrounding the :rod |02. The machine isnow ready for the presenation of a new shoe to be operated upon.

Having thus described my invention, what I `claim as new and desire to .secure by Letters Patent ofthe United States is: n

l. In a machine for cementing the angularlyldisposed faces of a channel provided in the'sole of a turn shoe, a stationary tapered nozzle pointing inwardly of the machine and a shoe-engaging member movable outwardly of the machin 2. In a machine for cementing the angularlydisposed faces of a` channel provided iny the sole of a turn shoe, a tapered extruding nozzle point' ing yinwardly of the machine, a shoe-engaging member movable outwardly of the machine so as to press the shoe against the nozzle, and a member for holdingy the channel iiap in cement-receiving contact with the nozzle.

3. In a machine for cementing the angularlydisposed faces of a channel provided in the sole of a turn shoe, a rigidly-mounted tapered nozlzle pointing inwardly of the machine, a shoeengaging and feeding member movable outwardly of the machinefand an oscillating mem ber for holding the channel iiap in cement-re ceiving contact with, the nozzle.

4. In a machine for cementing the angularlydisposed faces of a channel provided in the sole of a turn shoe, a nozzle for engaging the said channel, `a driven feed wheel on one side of ithe nozzle engaging the lasted upper of the said turn shoe, and a channel-flap-supporting member locate-d at the same side of the nozzle as thefeed Wheel for holding the ychannel flap against the nozzle.' j

5. In a machine for cementing the angularlydisposed `faces of a channel provided in the sole of a turn shoe, a nozzle for engaging the said channel, a driven feed member engaging the lasted upper of the said turn shoe to feed the said shoe past the nozzle, and an oscillatory member located between the said nozzle and the said feed member for holding the channel vflap against the nozzle.

I. 6. In a machine for cementing the angularlyv `disposed faces of 'a channel provided in the sole of a turn shoe, a rigidly-mounted nozzle engaging within said channel, and a feed member engaging the upper lof said shoe near its point of attachment to ,the said sole, whereby the sole is pressed against the nozzle.'

. 7. Ina machine for cementing the angularlydisposed faces of a channel provided in the sole of a turn shoe, a rigidly-mounted nozzle engaging within said channel, a feed member engaging the upper of said shoe near its point of attachment to the said sole to press the sole against the nozzle, and a channel-flap-engaging member for holding the channel iiap against the nozzle.

8. In a machine for cementing the angularlydisposed faces of a channel provided in the sole of a turn shoe, a rigidly-mounted nozzle engaging Within said channel, a movable feed-mem- .ber engaging the upper of said shoe near its point of attachment to said sole to press the sole against the nozzle, and an oscillating channelnap-engaging member for holding the channel flap' against the nozzle.

9. In amachine forcementing the angularlydisposed faces of a channel provided in the `sole' of a turn shoe, a nozzle having the top Vface of its tip portion inclined in one Adirec1'.ion',a feed wheel inclined in the opposite direction, and a flapfengaging member arranged over the top of the feed Wheely to press the channel flap against the said top of the nozzle. e

. WILBUR L. MACKENZIE.. 

